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"""!
@brief Examples of usage and demonstration of abilities of MBSAS algorithm in cluster analysis.
@authors Andrei Novikov (pyclustering@yandex.ru)
@date 2014-2020
@copyright BSD-3-Clause
"""
from pyclustering.cluster.bsas import bsas_visualizer;
from pyclustering.cluster.mbsas import mbsas;
from pyclustering.samples.definitions import SIMPLE_SAMPLES, FCPS_SAMPLES;
from pyclustering.utils import read_sample;
from pyclustering.utils.metric import distance_metric, type_metric;
def template_clustering(path, amount, threshold, **kwargs):
metric = kwargs.get('metric', distance_metric(type_metric.EUCLIDEAN_SQUARE));
ccore = kwargs.get('ccore', False);
draw = kwargs.get('draw', True);
sample = read_sample(path);
print("Sample: ", path);
mbsas_instance = mbsas(sample, amount, threshold, ccore=ccore, metric=metric);
mbsas_instance.process();
clusters = mbsas_instance.get_clusters();
representatives = mbsas_instance.get_representatives();
if draw is True:
bsas_visualizer.show_clusters(sample, clusters, representatives);
def cluster_sample1():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, 2, 1.0);
def cluster_sample2():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE2, 3, 1.0);
def cluster_sample3():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE3, 4, 1.0);
def cluster_sample4():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE4, 5, 1.0);
def cluster_sample5():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE5, 4, 1.0);
def cluster_sample6():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE6, 2, 1.0);
def cluster_elongate():
template_clustering(SIMPLE_SAMPLES.SAMPLE_ELONGATE, 2, 1.0);
def cluster_two_diamonds():
template_clustering(FCPS_SAMPLES.SAMPLE_TWO_DIAMONDS, 2, 1.0);
cluster_sample1();
cluster_sample2();
cluster_sample3();
cluster_sample4();
cluster_sample5();
cluster_sample6();
cluster_elongate();
cluster_two_diamonds();
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